The first official mobile phone call made on the Racal Vodafone network took place on Jan 1, 1985, but radio amateurs had been developing mobile phones in the 1970’s
Source: SouthGate Amateur Radio News

No rest for the busy HERO (Ham Emergency Radio Operations) network which has again activated for the storm Jangmi (Seniang) that made landfall in Mindanao Island on December 29 and crossed central areas causing massive floods and landslides
Source: SouthGate Amateur Radio News